Validate contacts and enrich identity signals before bad data spreads

Use MailSlurp to verify email addresses, inspect phone intelligence, enrich customer records, and reduce risky recipient data before it reaches signup, import, support, or sending workflows.

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MailSlurp (examples)

// Validate a list of addresses and inspect valid vs invalid results.
const res: ValidateEmailAddressListResult =
  await mailslurp.emailVerificationController.validateEmailAddressList({
    validateEmailAddressListOptions: {
      // don't change these as want to cache the results
      emailAddressList: [
        'contact@mailslurp.dev',
        'd9sdj2318ds0-sd9f12juasd-13248aa@gmail.com',
      ],
    },
  });
expect(res.validEmailAddresses).toEqual(['contact@mailslurp.dev']);
expect(res.invalidEmailAddresses).toEqual([
  'd9sdj2318ds0-sd9f12juasd-13248aa@gmail.com',
]);

Validate lists before signup, import, or send workflows

Call MailSlurp from tests, onboarding jobs, and operations workflows to classify valid recipients, disposable addresses, risky records, and addresses that need review before they enter customer systems.

MailSlurp (examples)

// Validate a list of addresses and inspect valid vs invalid results.
const res: ValidateEmailAddressListResult =
  await mailslurp.emailVerificationController.validateEmailAddressList({
    validateEmailAddressListOptions: {
      // don't change these as want to cache the results
      emailAddressList: [
        'contact@mailslurp.dev',
        'd9sdj2318ds0-sd9f12juasd-13248aa@gmail.com',
      ],
    },
  });
expect(res.validEmailAddresses).toEqual(['contact@mailslurp.dev']);
expect(res.invalidEmailAddresses).toEqual([
  'd9sdj2318ds0-sd9f12juasd-13248aa@gmail.com',
]);

Identity checks MailSlurp supports

Combine validation, lookup, and enrichment signals wherever customer identity data needs to be trusted before a workflow continues.

Signup validation

Classify new user addresses before account creation, trial abuse checks, or onboarding emails are triggered.

Import cleanup

Screen CSV imports, CRM syncs, and partner data before invalid or risky recipients pollute downstream systems.

Pre-send decisions

Check recipient quality before important transactional, lifecycle, or operational sends go out.

Disposable and role detection

Flag temporary, shared, role-based, or suspicious addresses so teams can route them into the right review path.

Phone intelligence

Inspect line, region, and carrier context when phone numbers are part of verification or customer workflows.

API evidence

Keep validation results close to the code, dashboard, or workflow that needs to make the next decision.

Integrate MailSlurp Seamlessly

Integrate with any framework

Official plugins and SDKs for all major programming languages, frameworks, and test platforms. All functionality available via API or dashboard.

CI/CD Native

MailSlurp fits right into your existing development, testing, and CI/CD workflows. Deploy and iterate with confidence and actionable feedback.

Developer Integrations

Validation workflows at production scale

Message platform

Email + SMS

Use identity checks alongside inbox and phone workflows.

Developer APIs

SDKs

Validate, classify, and route contacts from code.

Mature platform

10+ years

Stable infrastructure for operational workflows.